He relies on Nicholas Ribis, his partner and a longtime casino industry figure, to operate his casino holdings.

Mr. Trump's stake in his casino holdings was worth $34.5 million before his company said it intended to file for bankruptcy protection.

His casino holdings are mired in nearly $2 billion of bond debt that they are struggling to repay.

Mr. Trump said his casino holdings amounted to only about 3 percent of his net worth, which, using his estimate, would thus be about $1.6 billion.

Its casino holdings grew to ten properties over the years, accounting for more than half of the company's revenues.

The shares of other gaming companies, and those with large casino holdings, also took losses.

In 1995, he combined his casino holdings into the publicly held Trump Hotels & Casino Resorts.

But what if the house is owned by Donald J. Trump, whose cash-starved casino holdings are struggling to stay afloat?

His casino holdings, as of about a week ago, were worth $34.5 million.

(Donald's casino holdings have recently rebounded in value, perhaps adding as much as $135 million to these estimates.)